Dolphin-striker. The martingale. (See Plate I.)

Douse. To lower suddenly.

Dowelling. A method of coaking, by letting pieces into the solid, or uniting two pieces together by tenons.

Downhaul. A rope used to haul down jibs, staysails, and studdingsails.

Drabler. A piece of canvass laced to the bonnet of a sail, to give it more drop.

Drag. A machine with a bag net, used for dragging on the bottom for anything lost.

Draught. The depth of water which a vessel requires to float her.

Draw. A sail draws when it is filled by the wind.

To draw a jib, is to shift it over the stay to leeward, when it is aback.

Drifts. Those pieces in the sheer-draught where the rails are cut off.